Two-loop QCD gauge coupling at high temperatures

Laine M, Schroeder Y (2005)
JHEP 2005(03): 067.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
We determine the 2-loop effective gauge coupling of QCD at high temperatures, defined as a matching coeffcient appearing in the dimensionally reduced effective field theory. The result allows to improve on one of the classic non-perturbative probes for the convergence of the weak-coupling expansion at high temperatures, the comparison of full and effective theory determinations of an observable called the spatial string tension. We find surprisingly good agreement almost down to the critical temperature of the deconfinement phase transition. We also determine one new contribution of order O(g(6)T(4)) to the pressure of hot QCD.
Stichworte
computations; thermal field theory; lattice gauge field theories; NLO; QCD
Erscheinungsjahr
2005
Zeitschriftentitel
JHEP
Band
2005
Ausgabe
03
Seite(n)
067
ISSN
1126-6708
eISSN
1029-8479
Page URI
https://pub.uni-bielefeld.de/record/1603856

Zitieren

Laine M, Schroeder Y. Two-loop QCD gauge coupling at high temperatures. JHEP. 2005;2005(03):067.
Laine, M., & Schroeder, Y. (2005). Two-loop QCD gauge coupling at high temperatures. JHEP, 2005(03), 067. doi:10.1088/1126-6708/2005/03/067
Laine, M., and Schroeder, Y. (2005). Two-loop QCD gauge coupling at high temperatures. JHEP 2005, 067.
Laine, M., & Schroeder, Y., 2005. Two-loop QCD gauge coupling at high temperatures. JHEP, 2005(03), p 067.
M. Laine and Y. Schroeder, “Two-loop QCD gauge coupling at high temperatures”, JHEP, vol. 2005, 2005, pp. 067.
Laine, M., Schroeder, Y.: Two-loop QCD gauge coupling at high temperatures. JHEP. 2005, 067 (2005).
Laine, Mikko, and Schroeder, York. “Two-loop QCD gauge coupling at high temperatures”. JHEP 2005.03 (2005): 067.

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arXiv: hep-ph/0503061

Inspire: 677886

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